login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A046362 Composite palindromes divided by the palindromic sum of their prime factors is a palindrome (counted with multiplicity). 0
4, 1345431, 12333321, 1425665241, 12026255262021, 35686666668653, 40181955918104, 128449444944821, 146426787624641, 651751101157156, 1734573883754371, 2313421221243132 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

1345431 = 3 * 17 * 23 * 31 * 37 -> Sum of factors is palindrome 111 -> 1345431 / 111 = 12121 and quotient is also palindromic.

CROSSREFS

Cf. A046358, A046361.

Sequence in context: A079286 A124119 A090096 * A144122 A058424 A204041

Adjacent sequences:  A046359 A046360 A046361 * A046363 A046364 A046365

KEYWORD

nonn,more,base

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Jun 15 1998.

EXTENSIONS

Edited name and a(5)-a(12) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Oct 11 2011

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 12 12:12 EST 2012. Contains 205378 sequences.